CBSE Class 10 Science 2020 · Paper 31/3/1 · Question 13

Carbon and its Compounds 1 mark Medium

Note : For question numbers 13 and 14, two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below :

Assertion (A): Following are the members of a homologous series : $CH_{3} OH$ , $CH_{3} CH_{2} OH$ , $CH_{3} CH_{2} CH_{2} OH$

Reason (R): A series of compounds with same functional group but differing by $- CH_{2} -$ unit is called a homologous series.

(a)Both (A) and (R) are true and (R) is correct explanation of the assertion.
(b)Both (A) and (R) are true but (R) is not the correct explanation of the assertion.
(c)(A) is true but (R) is false.
(d)(A) is false but (R) is true.

Answer

(a) Both (A) and (R) are true and (R) is correct explanation of the assertion.

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CBSE Class 10 Science 2020 · Paper 31/3/1 · Question 13

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